data data sydneyGreater Sydney Dam Levels. Greater Sydney catchment rainfall, total storage and water supply. HOW MUCH RAIN HAVE WE HAD? 3.3MM. 8.9MM FOR THE LAST WEEK.Data Analytics, Testamur Major (T004) · Data Science and Machine Learning, Minor (0322) · Data Science, Testamur Major (T079) · Desn for Sustainability, Minor